I am actually not a scent person - meaning perfumes and chemical smells give me headaches, but using a pure essential oil is very different and does not cause me any adverse reaction.
There are so many options - from single source oils to mixed oils that target particular areas. Some are better for cleansing, others help with colds and respiratory issues - the uses are endless.
I purchased a book about essential oils to help me better understand them. It arrived and is a HUGE book, but is easy to navigate because it is set up more like a reference book. It is The Complete Book of Essential Oils and Aromatherapy by Valerie Ann Worwood.
The sense of smell is one of the strongest triggers to memory, so it impacts us on a deep level. Finding a candle or essential oil that makes you happy or brings up a positive memory can have a wonderful impact on any space.